Novel nanostructured hematite–spongin composite developed using an extreme biomimetic approach

Szatkowski, Tomasz; Wysokowski, Marcin; Lota, Grzegorz; Pęziak, Daria; Bazhenov, Vasilii V.; Nowaczyk, Grzegorz; Walter, Juliane; Молодцов, С. Л.; Stöcker, Hartmut; Himcinschi, Cameliu; Petrenko, Iaroslav; Stelling, Allison L.; Jurga, Stefan; Jesionowski, Teofil; Ehrlich, Hermann

doi:10.1039/c5ra09379a

Cited by 73 publications

(50 citation statements)

References 72 publications

(96 reference statements)

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“…These demosponges are widely cultivated under marine ranching conditions and, consequently, represent renewable source of special, naturally prestructured biological scaffolds. Nevertheless, to date they have found application mostly as adsorbents [37,38], scaffolds for tissue engineering and regeneration [39,40,41,42] and templates for development of composites used in electrochemistry [43]. Therefore, it is necessary to further functionalize selected marine demosponge skeletons as special matrices in order to improve their surface properties and enable their use in various further applications.…”

Section: Introductionmentioning

confidence: 99%

Sodium Copper Chlorophyllin Immobilization onto Hippospongia communis Marine Demosponge Skeleton and Its Antibacterial Activity

Norman

Bartczak

Zdarta

et al. 2016

IJMS

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In this study, Hippospongia communis marine demosponge skeleton was used as an adsorbent for sodium copper chlorophyllin (SCC). Obtained results indicate the high sorption capacity of this biomaterial with respect to SCC. Batch experiments were performed under different conditions and kinetic and isotherms properties were investigated. Acidic pH and the addition of sodium chloride increased SCC adsorption. The experimental data were well described by a pseudo-second order kinetic model. Equilibrium adsorption isotherms were determined and the experimental data were analyzed using both Langmuir and Freundlich isotherms. The effectiveness of the process was confirmed by 13C Cross Polarization Magic Angle Spinning Nuclear Magnetic Resonance (13C CP/MAS NMR), Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDS) and thermogravimetric analysis (TG). This novel SCC-sponge-based functional hybrid material was found to exhibit antimicrobial activity against the gram-positive bacterium Staphylococcus aureus.

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Section: Introductionmentioning

confidence: 99%

Sodium Copper Chlorophyllin Immobilization onto Hippospongia communis Marine Demosponge Skeleton and Its Antibacterial Activity

Norman

Bartczak

Zdarta

et al. 2016

IJMS

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“…For example, at a scan rate of 10 mV s −1 the areal or gravimetric capacitances were as high as 20.6 mF cm −2 or 102 F g −1 . These values are in the typical range of carbon/hematite composite materials used as electrodes in supercapacitors, although maximum capacitances of >450 F g −1 have been reported . Notably, the herein presented values are significantly lower (by a factor of ≈5) compared to graphene oxide/Fe 3 O 4 based electrode materials .…”

Section: Resultsmentioning

confidence: 53%

Carbon Nanodots as Feedstock for a Uniform Hematite‐Graphene Nanocomposite

Strauß

Anderson

Wang

et al. 2018

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High degrees of dispersion are a prerequisite for functional composite materials for applications in electronics such as sensors, charge and data storage, and catalysis. The use of small precursor materials can be a decisive factor in achieving a high degree of dispersion. In this study, carbon nanodots are used to fabricate a homogeneous, finely dispersed Fe2O3‐graphene composite aerogel in a one‐step conversion process from a precursor mixture. The laser‐assisted conversion of small size carbon nanodots enables a uniform distribution of 6.5 nm Fe2O3 nanoparticles during the formation of a highly conductive carbon matrix. Structural and electrochemical characterization shows that the features of both material entities are maintained and successfully integrated. The presence of Fe2O3 nanoparticles has a positive effect on the active surface area of the carbon aerogel and thus on the capacitance of the material. This is demonstrated by testing the performance of the composite in supercapacitors. Faradaic reactions are exploited in an aqueous electrolyte through the high accessible surface of the incorporated small Fe2O3 nanoparticles boosting the specific capacitance of the 3D turbostratic graphene network significantly.

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“…These unique biopolymer-containing constructs offer alternative immobilization matrices that can be isolated from demosponges cultivated worldwide, to provide appropriate supports for a broad range of enzymes. Thus, demosponges of the order Dictioceratida (also known as commercial bath sponges) [7,8] represent a renewable source of proteinaceous spongin scaffolds which have recently been reported as effective in applications in extreme biomimetics [9][10][11][12], waste treatment [13][14][15][16][17], electrochemistry [18], and enzyme immobilization [19]. Meanwhile, marine demosponges of the order Verongiida have been recognized as a renewable source of uniquely pre-structured 3D chitinous scaffolds [20][21][22][23][24][25][26][27][28] which have found applications in tissue engineering [6,21,[29][30][31][32][33][34], drug release [35], the development of hybrid materials [36][37][38][39][40], and environmental science [41,42].…”

Section: Introductionmentioning

confidence: 99%

3D Chitin Scaffolds from the Marine Demosponge Aplysina archeri as a Support for Laccase Immobilization and Its Use in the Removal of Pharmaceuticals

et al. 2020

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For the first time, 3D chitin scaffolds from the marine demosponge Aplysina archeri were used for adsorption and immobilization of laccase from Trametes versicolor. The resulting chitin–enzyme biocatalytic systems were applied in the removal of tetracycline. Effective enzyme immobilization was confirmed by scanning electron microscopy. Immobilization yield and kinetic parameters were investigated in detail, in addition to the activity of the enzyme after immobilization. The designed systems were further used for the removal of tetracycline under various process conditions. Optimum process conditions, enabling total removal of tetracycline from solutions at concentrations up to 1 mg/L, were found to be pH 5, temperature between 25 and 35 °C, and 1 h process duration. Due to the protective effect of the chitinous scaffolds and stabilization of the enzyme by multipoint attachment, the storage stability and thermal stability of the immobilized biomolecules were significantly improved as compared to the free enzyme. The produced biocatalytic systems also exhibited good reusability, as after 10 repeated uses they removed over 90% of tetracycline from solution. Finally, the immobilized laccase was used in a packed bed reactor for continuous removal of tetracycline, and enabled the removal of over 80% of the antibiotic after 24 h of continuous use.

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Novel nanostructured hematite–spongin composite developed using an extreme biomimetic approach

Abstract: The characteristic mineral-free fibrous skeletons (made of structural protein-spongin) of H. communis (Demospongiae: Porifera) was used as a structural template in hydrothermal synthesis of hematite (α-Fe2O3) nanoparticles.

Cited by 73 publications

References 72 publications

Sodium Copper Chlorophyllin Immobilization onto Hippospongia communis Marine Demosponge Skeleton and Its Antibacterial Activity

Sodium Copper Chlorophyllin Immobilization onto Hippospongia communis Marine Demosponge Skeleton and Its Antibacterial Activity

Carbon Nanodots as Feedstock for a Uniform Hematite‐Graphene Nanocomposite

3D Chitin Scaffolds from the Marine Demosponge Aplysina archeri as a Support for Laccase Immobilization and Its Use in the Removal of Pharmaceuticals

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